Note 6 - Contingent Consideration - Contingent Liability (Details)	9 Months Ended
	Jun. 30, 2022
Earnout Shares for Revenue Between $1 and $20,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	190,625
Earnout Shares for Revenue Between $20,000,001 and $60,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	953,125
Earnout Shares for Revenue Between $60,000,001 and $140,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	4,765,625
Earnout Shares for Revenue Between $140,000,001 and $300,000,000 [Member]
Business Acquisition, Contingent Consideration, Shares Issued Per Aggregate Net Revenue Ratio	23,828,125